Chi Square Standard Tests

Statistical test that explains if deviations from the standard are due to random errors.

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... 98 112.5 1.9
Purple 251 225 3.0
White 101 112.5 1.2
Total 450 450

X2 = 6.1

X2 = (observed - expected)^2
expected

Start with the null hypothesis: the observed deviations from the expected 1:2:1 ratio can be accounted for by sampling error.

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